--- /dev/null
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF.
+#
+# make extcoff = Convert ELF to AVR Extended COFF.
+#
+# make program = Download the hex file to the device.
+# Please customize your programmer settings(PROGRAM_CMD)
+#
+# make teensy = Download the hex file to the device, using teensy_loader_cli.
+# (must have teensy_loader_cli installed).
+#
+# make dfu = Download the hex file to the device, using dfu-programmer (must
+# have dfu-programmer installed).
+#
+# make flip = Download the hex file to the device, using Atmel FLIP (must
+# have Atmel FLIP installed).
+#
+# make dfu-ee = Download the eeprom file to the device, using dfu-programmer
+# (must have dfu-programmer installed).
+#
+# make flip-ee = Download the eeprom file to the device, using Atmel FLIP
+# (must have Atmel FLIP installed).
+#
+# make debug = Start either simulavr or avarice as specified for debugging,
+# with avr-gdb or avr-insight as the front end for debugging.
+#
+# make filename.s = Just compile filename.c into the assembler code only.
+#
+# make filename.i = Create a preprocessed source file for use in submitting
+# bug reports to the GCC project.
+#
+# To rebuild project do "make clean" then "make all".
+#----------------------------------------------------------------------------
+
+# Target file name (without extension).
+TARGET = alps64
+
+# Directory common source filess exist
+TOP_DIR = ../..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# project specific files
+SRC = keymap_common.c \
+ matrix.c \
+ led.c
+
+ifdef KEYMAP
+ SRC := keymap_$(KEYMAP).c $(SRC)
+else
+ SRC := keymap_plain.c $(SRC)
+endif
+
+CONFIG_H = config.h
+
+
+# MCU name
+MCU = atmega32u2
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency in Hz. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+#
+# This will be an integer division of F_USB below, as it is sourced by
+# F_USB after it has run through any CPU prescalers. Note that this value
+# does not *change* the processor frequency - it should merely be updated to
+# reflect the processor speed set externally so that the code can use accurate
+# software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+# This will define a symbol, F_USB, in all source code files equal to the
+# input clock frequency (before any prescaling is performed) in Hz. This value may
+# differ from F_CPU if prescaling is used on the latter, and is required as the
+# raw input clock is fed directly to the PLL sections of the AVR for high speed
+# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+# at the end, this will be done automatically to create a 32-bit value in your
+# source code.
+#
+# If no clock division is performed on the input clock inside the AVR (via the
+# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+# Teensy halfKay 512
+# Teensy++ halfKay 1024
+# Atmel DFU loader 4096
+# LUFA bootloader 4096
+# USBaspLoader 2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+# comment out to disable the options.
+#
+BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
+CONSOLE_ENABLE = yes # Console for debug(+400)
+COMMAND_ENABLE = yes # Commands for debug and configuration
+#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
+#NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
+
+
+# Optimize size but this may cause error "relocation truncated to fit"
+#EXTRALDFLAGS = -Wl,--relax
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TOP_DIR)
+
+include $(TOP_DIR)/protocol/lufa.mk
+include $(TOP_DIR)/common.mk
+include $(TOP_DIR)/rules.mk
--- /dev/null
+/*
+Copyright 2015 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x6464
+#define DEVICE_VER 0x0001
+#define MANUFACTURER geekhack
+#define PRODUCT Alps64
+#define DESCRIPTION t.m.k. keyboard firmware for Alps64
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 8
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif
--- /dev/null
+/*
+Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "keymap_common.h"
+
+
+/* translates key to keycode */
+uint8_t keymap_key_to_keycode(uint8_t layer, keypos_t key)
+{
+ return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
+}
+
+/* translates Fn keycode to action */
+action_t keymap_fn_to_action(uint8_t keycode)
+{
+ return (action_t){ .code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]) };
+}
--- /dev/null
+/*
+Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef KEYMAP_COMMON_H
+#define KEYMAP_COMMON_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/pgmspace.h>
+#include "keycode.h"
+#include "action.h"
+#include "action_macro.h"
+#include "report.h"
+#include "host.h"
+#include "print.h"
+#include "debug.h"
+#include "keymap.h"
+
+
+extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
+extern const uint16_t fn_actions[];
+
+
+/* Alps64 keymap definition macro */
+#define KEYMAP( \
+ K36, K37, K46, K47, K56, K57, K66, K67, K76, K77, K06, K07, K17, K26, K27, \
+ K34, K35, K44, K45, K54, K55, K64, K65, K75, K05, K15, K16, K25, K24, \
+ K32, K33, K43, K52, K53, K63, K73, K74, K03, K04, K13, K14, K23, \
+ K31, K41, K42, K51, K61, K62, K71, K72, K01, K02, K11, K12, K21, K22, \
+ K30, K40, K50, K60, K70, K00, K10, K20 \
+) { \
+ { KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07 }, \
+ { KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
+ { KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27 }, \
+ { KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
+ { KC_##K40, KC_##K41, KC_##K42, KC_##K43, KC_##K44, KC_##K45, KC_##K46, KC_##K47 }, \
+ { KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
+ { KC_##K60, KC_##K61, KC_##K62, KC_##K63, KC_##K64, KC_##K65, KC_##K66, KC_##K67 }, \
+ { KC_##K70, KC_##K71, KC_##K72, KC_##K73, KC_##K74, KC_##K75, KC_##K76, KC_##K77 } \
+}
+
+/* AEK US */
+#define KEYMAP_AEK( \
+ K36, K37, K46, K47, K56, K57, K66, K67, K76, K77, K06, K07, K17, K27, \
+ K34, K35, K44, K45, K54, K55, K64, K65, K75, K05, K15, K16, K25, K24, \
+ K32, K33, K43, K52, K53, K63, K73, K74, K03, K04, K13, K14, K23, \
+ K31, K42, K51, K61, K62, K71, K72, K01, K02, K11, K12, K21, \
+ K30, K40, K50, K60, K00, K10, K20 \
+) KEYMAP( \
+ K36, K37, K46, K47, K56, K57, K66, K67, K76, K77, K06, K07, K17, NO, K27, \
+ K34, K35, K44, K45, K54, K55, K64, K65, K75, K05, K15, K16, K25, K24, \
+ K32, K33, K43, K52, K53, K63, K73, K74, K03, K04, K13, K14, K23, \
+ K31, NO, K42, K51, K61, K62, K71, K72, K01, K02, K11, K12, K21, NO, \
+ K30, K40, K50, K60, NO, K00, K10, K20 \
+)
+
+#endif
--- /dev/null
+#include "keymap_common.h"
+
+/*
+ * Hasu
+ */
+const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Default Layer
+ * ,-----------------------------------------------------------.
+ * |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backsp |
+ * |-----------------------------------------------------------|
+ * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \|
+ * |-----------------------------------------------------------|
+ * |Ctrl | A| S| D| F| G| H| J| K| L|Fn3| '|FN1 |
+ * |-----------------------------------------------------------|
+ * |Shift | Z| X| C| V| B| N| M| ,| .|Fn2|Shift |
+ * |-----------------------------------------------------------|
+ * |Ctrl |Gui |Alt | Space |Alt |Fn5 |Ctrl |
+ * `-----------------------------------------------------------'
+ */
+ [0] = KEYMAP_AEK( \
+ ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, \
+ TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, \
+ LCTL,A, S, D, F, G, H, J, K, L, FN3, QUOT,FN1, \
+ LSFT,Z, X, C, V, B, N, M, COMM,DOT, FN2, RSFT, \
+ LCTL,LGUI,LALT, FN4, RALT,FN5, RCTL),
+
+ /* HHKB mode[HHKB Fn]
+ * ,-----------------------------------------------------------.
+ * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Del |
+ * |-----------------------------------------------------------|
+ * |Caps | | | | | | | |Psc|Slk|Pus|Up | |Backs|
+ * |-----------------------------------------------------------|
+ * |Contro|VoD|VoU|Mut| | | *| /|Hom|PgU|Lef|Rig|Enter |
+ * |-----------------------------------------------------------|
+ * |Shift | | | | | | +| -|End|PgD|Dow|Shift |
+ * |-----------------------------------------------------------|
+ * |Ctrl |Gui |Alt | Space |Alt |Fn5 |Ctrl |
+ * `-----------------------------------------------------------'
+ */
+ [1] = KEYMAP_AEK( \
+ GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, \
+ CAPS,NO, NO, NO, NO, NO, NO, NO, PSCR,SLCK,PAUS,UP, NO, BSPC, \
+ LCTL,VOLD,VOLU,MUTE,NO, NO, PAST,PSLS,HOME,PGUP,LEFT,RGHT,TRNS, \
+ LSFT,NO, NO, NO, NO, NO, PPLS,PMNS,END, PGDN,DOWN,RSFT, \
+ LCTL,LGUI,LALT, TRNS, RALT,RGUI,RCTL),
+
+ /* Vi mode[Slash]
+ * ,-----------------------------------------------------------.
+ * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Del |
+ * |-----------------------------------------------------------|
+ * |Tab |Hom|PgD|Up |PgU|End|Hom|PgD|PgUlEnd| | | |Backs|
+ * |-----------------------------------------------------------|
+ * |Contro| |Lef|Dow|Rig| |Lef|Dow|Up |Rig| | |Return |
+ * |-----------------------------------------------------------|
+ * |Shift | | | | | |Hom|PgD|PgUlEnd|Fn0|Shift |
+ * |-----------------------------------------------------------|
+ * |Ctrl |Gui |Alt | Space |Alt |Fn5 |Ctrl |
+ * `-----------------------------------------------------------'
+ */
+ [2] = KEYMAP_AEK( \
+ GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, \
+ TAB, HOME,PGDN,UP, PGUP,END, HOME,PGDN,PGUP,END, NO, NO, NO, BSPC, \
+ LCTL,NO, LEFT,DOWN,RGHT,NO, LEFT,DOWN,UP, RGHT,NO, NO, ENT, \
+ LSFT,NO, NO, NO, NO, NO, HOME,PGDN,PGUP,END, FN2, RSFT, \
+ LCTL,LGUI,LALT, SPC, RALT,RGUI,RCTL),
+
+ /* Mouse mode(IJKL)[Semicolon]
+ * ,-----------------------------------------------------------.
+ * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
+ * |-----------------------------------------------------------|
+ * |Tab | | | | | |MwL|MwD|McU|MwU|MwR|Wbk|Wfr|Alt-T|
+ * |-----------------------------------------------------------|
+ * |Contro| | | | | |Mb2|McL|McD|McR|Fn | |Return |
+ * |-----------------------------------------------------------|
+ * |Shift | | | | |Mb3|Mb2|Mb1|Mb4|Mb5| |Shift | |
+ * |-----------------------------------------------------------|
+ * |Ctrl |Gui |Alt | Space |Alt |Fn5 |Ctrl |
+ * `-----------------------------------------------------------'
+ * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
+ */
+ [3] = KEYMAP_AEK( \
+ GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, \
+ FN8, NO, NO, NO, NO, NO, NO, WH_D,MS_U,WH_U,RGHT,FN9, FN10,FN8, \
+ LCTL,ACL0,ACL1,ACL2,ACL2,NO, NO, MS_L,MS_D,MS_R,TRNS,NO, ENT, \
+ LSFT,NO, NO, NO, NO, BTN3,BTN2,BTN1,FN9, FN10,NO, RSFT, \
+ LCTL,LGUI,LALT, BTN1, TRNS,TRNS,TRNS),
+
+ /* Layer 4: Mouse mode(IJKL)[Space]
+ * ,-----------------------------------------------------------.
+ * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Ins|Del|
+ * |-----------------------------------------------------------|
+ * |Tab | | | | | |MwL|MwD|McU|MwU|MwR|Wbk|Wfr|Alt-T|
+ * |-----------------------------------------------------------|
+ * |Contro| | | | | |Mb2|McL|McD|McR|Mb1| |Return |
+ * |-----------------------------------------------------------|
+ * |Shift | | | | |Mb3|Mb2|Mb1|Mb4|Mb5| |Shift | |
+ * |-----------------------------------------------------------|
+ * |Ctrl |Gui |Alt | Space |Alt |Fn5 |Ctrl |
+ * `-----------------------------------------------------------'
+ * Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
+ */
+ [4] = KEYMAP_AEK( \
+ GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, \
+ FN8, NO, NO, NO, NO, NO, NO, WH_D,MS_U,WH_U,RGHT,FN9, FN10,FN8, \
+ LCTL,VOLD,VOLU,MUTE,NO, NO, NO, MS_L,MS_D,MS_R,BTN1,NO, ENT, \
+ LSFT,NO, NO, NO, NO, BTN3,BTN2,BTN1,FN9, FN10,NO, RSFT, \
+ LCTL,LGUI,LALT, TRNS, TRNS,TRNS,TRNS),
+};
+
+
+/* id for user defined function/macro */
+enum function_id {
+ NONE,
+};
+
+enum macro_id {
+ ALT_TAB,
+};
+
+
+/*
+ * Fn action definition
+ */
+const uint16_t PROGMEM fn_actions[] = {
+ [0] = ACTION_DEFAULT_LAYER_SET(0), // Default layer(not used)
+ [1] = ACTION_LAYER_TAP_KEY(1, KC_ENTER), // HHKB layer
+ [2] = ACTION_LAYER_TAP_KEY(2, KC_SLASH), // Cursor layer with Slash*
+ [3] = ACTION_LAYER_TAP_KEY(3, KC_SCLN), // Mousekey layer with Semicolon*
+ [4] = ACTION_LAYER_TAP_KEY(4, KC_SPC), // Mousekey layer with Space
+ [5] = ACTION_LAYER_MOMENTARY(3), // Mousekey layer(IJKL)
+ [6] = ACTION_LAYER_TAP_KEY(MOD_RCTL, KC_ENT), // RControl with tap Enter
+ [7] = ACTION_MODS_ONESHOT(MOD_LSFT), // Oneshot Shift
+ [8] = ACTION_MACRO(ALT_TAB), // Application switching
+ [9] = ACTION_MODS_KEY(MOD_LALT, KC_LEFT),
+ [10] = ACTION_MODS_KEY(MOD_LALT, KC_RIGHT),
+};
+
+
+/*
+ * Macro definition
+ */
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+ switch (id) {
+ case ALT_TAB:
+ return (record->event.pressed ?
+ MACRO( D(LALT), D(TAB), END ) :
+ MACRO( U(TAB), END ));
+ }
+ return MACRO_NONE;
+}
--- /dev/null
+#include "keymap_common.h"
+
+const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* 0: qwerty */
+ KEYMAP_AEK( \
+ GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, \
+ TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, \
+ CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT,ENT, \
+ LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH,RSFT, \
+ LCTL,LGUI,LALT, SPC, RALT,RGUI,RCTL),
+};
+const uint16_t PROGMEM fn_actions[] = {};
--- /dev/null
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <avr/io.h>
+#include "stdint.h"
+#include "led.h"
+
+
+void led_set(uint8_t usb_led)
+{
+ if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
+ // output high
+ DDRC |= (1<<5);
+ PORTC |= (1<<5);
+ } else {
+ // Hi-Z
+ DDRC &= ~(1<<5);
+ PORTC &= ~(1<<5);
+ }
+}
--- /dev/null
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 5
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ // initialize row and col
+ unselect_rows();
+ init_cols();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+}
+
+uint8_t matrix_scan(void)
+{
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ select_row(i);
+ _delay_us(30); // without this wait read unstable value.
+ matrix_row_t cols = read_cols();
+ if (matrix_debouncing[i] != cols) {
+ matrix_debouncing[i] = cols;
+ if (debouncing) {
+ debug("bounce!: "); debug_hex(debouncing); debug("\n");
+ }
+ debouncing = DEBOUNCE;
+ }
+ unselect_rows();
+ }
+
+ if (debouncing) {
+ if (--debouncing) {
+ _delay_ms(1);
+ } else {
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ matrix[i] = matrix_debouncing[i];
+ }
+ }
+ }
+
+ return 1;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+ return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+ return matrix[row];
+}
+
+void matrix_print(void)
+{
+ print("\nr/c 0123456789ABCDEF\n");
+ for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+ phex(row); print(": ");
+ pbin_reverse16(matrix_get_row(row));
+ print("\n");
+ }
+}
+
+/* Column pin configuration
+ * col: 0 1 2 3 4 5 6 7
+ * pin: B0 B1 B2 B3 B4 B5 B6 B7
+ */
+static void init_cols(void)
+{
+ // Input with pull-up(DDR:0, PORT:1)
+ DDRB &= ~0b11111111;
+ PORTB |= 0b11111111;
+}
+
+/* Returns status of switches(1:on, 0:off) */
+static matrix_row_t read_cols(void)
+{
+ // Invert because PIN indicates 'switch on' with low(0) and 'off' with high(1)
+ return ~PINB;
+}
+
+/* Row pin configuration
+ * row: 0 1 2 3 4 5 6 7
+ * pin: D0 D1 D2 D3 D4 D5 D6 C2
+ */
+static void unselect_rows(void)
+{
+ // Hi-Z(DDR:0, PORT:0) to unselect
+ DDRD &= ~0b01111111;
+ PORTD &= ~0b01111111;
+ DDRC &= ~0b00000100;
+ PORTD &= ~0b00000100;
+}
+
+static void select_row(uint8_t row)
+{
+ // Output low(DDR:1, PORT:0) to select
+ switch (row) {
+ case 0:
+ DDRD |= (1<<0);
+ PORTD &= ~(1<<0);
+ break;
+ case 1:
+ DDRD |= (1<<1);
+ PORTD &= ~(1<<1);
+ break;
+ case 2:
+ DDRD |= (1<<2);
+ PORTD &= ~(1<<2);
+ break;
+ case 3:
+ DDRD |= (1<<3);
+ PORTD &= ~(1<<3);
+ break;
+ case 4:
+ DDRD |= (1<<4);
+ PORTD &= ~(1<<4);
+ break;
+ case 5:
+ DDRD |= (1<<5);
+ PORTD &= ~(1<<5);
+ break;
+ case 6:
+ DDRD |= (1<<6);
+ PORTD &= ~(1<<6);
+ break;
+ case 7:
+ DDRC |= (1<<2);
+ PORTC &= ~(1<<2);
+ break;
+ }
+}